1 Astrology
1.1 Origin
Southern and central Africa
Madagascar, Southern and central Africa
1.2 Color
Colorless, Greenish, Colorless, Green, gray, Yellow
Grey, Brownish, Blue, Colorless, White, gray, Reddish
1.3 Streak
1.4 For which Rashi?
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1.5 Planet
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1.6 Element of Planets
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1.7 How to Wear?
1.7.1 Finger
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1.7.2 Ring Metal
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1.8 Energy
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1.9 Deities
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1.10 Not to wear with
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1.11 Powers
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1.12 Birthstone
1.12.1 Planetary
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1.12.2 Talisman
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2 Physical Properties
2.1 Tenacity
2.2 Solubility
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2.3 Durability
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2.4 Specific Gravity
3.21-3.382.54-2.61
1
7.18
2.5 Fracture
Irregular/uneven, Uneven
Uneven, Uneven, Gems, Sixth Edition (2006)
2.6 Cleavage
Perfect on {001}
{001} Perfect, {010} Good
2.7 Mohs Hardness
2.8 Chemical Composition
Ca 2Al 3(SiO 4) 3(OH)Walter Schumann , Gemstones of the world (2001) More from other references
KAlSi 3O 8Michael OâDonoghue , Gems, Sixth Edition (2006)
3 Optical Properties
3.1 Luster
3.2 Pleochroism
StrongArthur Thomas
WeakMichael OâDonoghue
3.3 Dispersion
3.4 Transparency
3.5 Refractive Index
1.670-1.7341.518-1.536
1
3.25
3.6 Optic Character
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3.7 Crystal System
3.8 Birefringence
0.006-0.0110.005-0.008
0
0.296
3.9 Clarity
4 Benefits
4.1 Physical
4.1.1 Neurological
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4.1.2 Cardiovascular
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4.1.3 Respiratory
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4.1.4 Reproductive
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4.1.5 Digestive
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4.2 Psychology
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4.3 Healing
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4.4 Qualities Associated
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